linux-kernel - Re: 2.6.30-rc1: touchscreen BUG() on spitz

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Date:	Fri, 10 Apr 2009 18:29:15 +0200
From:	Pavel Machek <pavel@....cz>
To:	Daniel Ribeiro <drwyrm@...il.com>
Cc:	Eric Miao <eric.y.miao@...il.com>, rpurdie@...ys.net,
	lenz@...wisc.edu, kernel list <linux-kernel@...r.kernel.org>,
	Russell King <rmk@....linux.org.uk>, Dirk@...er-online.de,
	arminlitzel@....de, Cyril Hrubis <metan@....cz>,
	thommycheck@...il.com,
	linux-arm-kernel <linux-arm-kernel@...ts.arm.linux.org.uk>,
	dbaryshkov@...il.com, omegamoon@...il.com
Subject: Re: 2.6.30-rc1: touchscreen BUG() on spitz

Hi!

> > > After update to 2.6.30-rc1, sharp zaurus c-3000 fails to boot with
> > > white screen (with stripes). That's a regression w.r.t. 2.6.29.
> > 
> > What kind of white stripes? Does it look like the LCD controller
> > stops working or something.
> > 
> > There is a regression which caused X server hang during bootup,
> > with commit id 66c1ca0, which you can revert and have another
> > try.
> 
> As spitz also use cs_control for pxa2xx_spi, i believe that this is the
> same issue i found wednesday.
> 
> See the "Kernel freeze caused by
> a7bb3909b3293d503211d7f6af8ed62c1644b686" thread.

Ok, I'll try changing ASSERT->DEASSERT and see what happens. Hmm, it
now boots, with these messages:

WARNING: at kernel/irq/handle.c:366
BUG: IRQ handler called from non-hardirq context!

just after loading touchscreen device.

Thanks!

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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